Minispike Acrodisc 13mm Syringe Filter 0.45um pore. Hydrophilic PVDF membrane for aqueous and nonaggressive solvent-based mobile phases. HPLC certified for low UV-absorbing extractables. Polypropylene housing. Female Luer-Lok inlet and minispike outlet.\<14uL hold-up volume. 100/pk 300/cs.